DL Audio Phoenix 8 (2+2)
8″ subwoofer · dual 2 Ω · 700 W RMS
Fs 36.4 HzQts 0.48Vas 0.25 ft³
Recommended box
For a sedan, one sub, 700 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.
Sealed
| Net volume | 0.32 ft³ (9 L) |
|---|---|
| Qtc | 0.64 |
| Fc | 49 Hz |
| F3 (−3 dB, no cabin gain) | 56 Hz |
| Example box (outside) | 10 5/8″ × 10 5/8″ × 8 5/8″ |
Ported
| Net volume | 0.64 ft³ (18 L) |
|---|---|
| Tuning (Fb) | 29 Hz |
| Port | slot 1 15/16 × 14 5/16″, 136 11/16″ long |
| Port velocity at 700 W | 40 ft/s |
| F3 (−3 dB, no cabin gain) | 26 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 14 1/16″ |
The volume and tuning are the recommendation, but the port doesn’t fit this example box. Size the box and port in the designer.
Open ported box in designerThiele/Small parameters
| Fs | 36.4 Hz |
|---|---|
| Qts | 0.48 |
| Qes | 0.522 |
| Qms | 6 |
| Vas | 0.25 ft³ |
| Re (one coil) | ≈ 1.7 Ω |
| Sd | ≈ 33.3 in² |
| Xmax | ≈ 0.39″ |
| EBP | 70 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 80.1 dB calc. |
General
| Size | 8″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | 700 W |
Mounting dimensions
| Cutout diameter | 7 5/16″ |
|---|---|
| Mounting depth | 5 7/8″ |
| Overall diameter | 8 11/16″ |
Only Qts is published — Qms assumed to be 6 and Qes calculated (barely affects box design).
“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.
Data sources
Other DL Audio 8″ models
- DL Audio Barracuda 8 Flat (2+2) 8″ · dual 2 Ω